A luminaire is used to illuminate point D. The luminaire is tilted at an angle 45°. Based on this information and the following figure, the angle (a) to make the illuminance level at point D = 34.641 Fc is . -5'. 45 I= 2000 cd in D 90 O a. Other answer O b. 30 O c. 15 O d. 12 O e. 20
A luminaire is used to illuminate point D. The luminaire is tilted at an angle 45°. Based on this information and the following figure, the angle (a) to make the illuminance level at point D = 34.641 Fc is . -5'. 45 I= 2000 cd in D 90 O a. Other answer O b. 30 O c. 15 O d. 12 O e. 20
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Transcribed Image Text:A luminaire is used to illuminate point D. The luminaire is tilted at an angle 45°. Based on this information and the following
figure, the angle (a) to make the illuminance level at point D = 34.641 Fc is .
5'.
45
I= 2000 cd
106-
in
D
90*
O a. Other answer
O b. 30
O c. 15
O d. 12
O e. 20
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